CVE-2010-4668

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernelbefore 2.6.37-rc7 allows local users to cause a denial of service (panic)via a zero-length I/O request in a device ioctl to a SCSI device, relatedto an unaligned map. NOTE: this vulnerability exists because of anincomplete fix for CVE-2010-4163.

Ubuntu-Description

Dan Rosenberg discovered that the SCSI subsystem did not correctly validateiov segments. A local attacker with access to a SCSI device could sendspecially crafted requests to crash the system, leading to a denial ofservice.